4N-3KL


4N-3KL Automatic construction leveling unit


Function

The automatic leveling unit is used for excavation, elevation marking, vertical planning, surveying for various engineering utilities.


Main advantages

  • Compact, reliable and unpretentious tool
  • The tool's visual axis remains stable with wind and vibration
  • Easy alignment (using the tool that comes in the kit)


Specifications

The permissible mean square error of measuring the excess by 1 km of double stroke, mm, below

2.5

Permissible average square error of horizontal angle measurement, below

0,1 degree

Visual tube
Magnification

23Х

Angular field of vision

2 degrees

Smallest sighting distance, m, below

1.2

Diameter of the entrance pupil mm

35

Thread range finder ratio

100+/-1

Limb diameter, mm

107

Limb division value

1 degree

installation level division value

5'

Compensator
Range of compensator operation, above

+/-15'

systematic error of the compensator operation for 1 'of the tilt of the level axis, not more

0.5"

Damping

magnetic

Weight of the leveling unit, kg

1.5

In the case, kg.

2.8